26456857 has 8 divisors (see below), whose sum is σ = 31212032. Its totient is φ = 21945600.

The previous prime is 26456827. The next prime is 26456869. The reversal of 26456857 is 75865462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26456857 - 2¹⁵ = 26424089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26456827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60744 + ... + 61177.

It is an arithmetic number, because the mean of its divisors is an integer number (3901504).

Almost surely, 2^26456857 is an apocalyptic number.

It is an amenable number.

26456857 is a deficient number, since it is larger than the sum of its proper divisors (4755175).

26456857 is a wasteful number, since it uses less digits than its factorization.

26456857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121959.

The product of its digits is 403200, while the sum is 43.

The square root of 26456857 is about 5143.6229449679. The cubic root of 26456857 is about 297.9747174623.

It can be divided in two parts, 264 and 56857, that added together give a square (57121 = 239²).

The spelling of 26456857 in words is "twenty-six million, four hundred fifty-six thousand, eight hundred fifty-seven".